Our outcomes showed that RAI14 expression is positively associated with macrophages and neutrophils (Supplementary Figure S4), and thereby demonstrated that RAI14 expression is related to immune infiltration in the tumor microenvironment of TNBC, where it positively correlated with T-cell exhaustion, macrophage, tumor-associated macrophages (TAMs), dendritic cell, monocyte, and neutrophil infiltration. The gene discussed is RAI14; the disease is neoplasm.